A condenser fin deviation correction repair method

Abstract

This invention relates to the field of condenser manufacturing technology, and in particular to a method for correcting and repairing condenser fin misalignment. The method includes the following steps: emitting parallel light through a parallel light emitting component onto a standard plate and the condenser to be repaired, allowing the parallel light to pass through the fin channels of the standard plate and the condenser to be repaired; collecting first illumination information from the fins; comparing the first illumination information with second illumination information from the standard light-transmitting area of ​​the standard plate to determine the abnormal projection area caused by fin bending; and correcting and repairing the abnormal projection area using a repair mechanism. By using parallel light to pass through the fin channels of the standard plate and the condenser to be repaired, and comparing the actual light transmission information with the standard light transmission information, abnormal channel areas caused by fin bending or curling can be accurately identified. This solves the problems of inaccurate fin deformation location assessment and difficulty in detecting local channel blockages in existing technologies that rely on manual visual inspection.

Description

Technical Field

[0001] This invention relates to the field of condenser manufacturing technology, and in particular to a method for correcting and repairing condenser fin misalignment. Background Technology

[0002] The automotive condenser is a crucial heat exchange component in an automotive air conditioning system. It typically consists of flat tubes, fins, and manifolds. The fins increase the heat exchange area, improving the efficiency of heat exchange between the refrigerant and the outside air. Because condenser fins are usually made of thin aluminum alloy with a densely arranged corrugated bend structure, they are susceptible to bending, curling, and other deformations from external impacts during production, handling, assembly, transportation, and use. This deformation can reduce or even block the airflow channels between adjacent fins, thereby decreasing airflow and affecting the condenser's heat exchange performance.

[0003] Currently, for condensers with deformed fins, manual methods are usually used. Generally, the folded fins are straightened one by one using needle-nose pliers or steel needles. This method is inefficient and requires a lot of manual labor. Summary of the Invention

[0004] The purpose of this invention is to solve the problem of troublesome repair of condenser fins as pointed out in the background art, and to propose a method for correcting and repairing condenser fin misalignment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A method for correcting and repairing condenser fin misalignment includes the following steps:

[0007] s1. Fix the condenser to be repaired based on the first positioning reference, and stack and fix the standard plate and the condenser to be repaired together based on the second positioning reference, and the standard flow channel area on the standard plate corresponds to the fin airflow channel of the condenser to be repaired.

[0008] s2. Using a parallel light emitting component, parallel light is emitted towards the standard plate and the condenser to be repaired, so that the parallel light passes through the fin channels of the standard plate and the condenser to be repaired;

[0009] s3. Collect first illumination information passing through the standard plate and the condenser to be repaired, and compare the first illumination information with the second illumination information of the standard light-transmitting area of ​​the standard plate to determine the abnormal projection area caused by fin bending;

[0010] s4. Correct and repair the abnormal projection area through the repair mechanism.

[0011] The present invention proposes a method for correcting and repairing condenser fin misalignment. The beneficial effects are as follows: by setting a standard plate corresponding to the standard flow channel of the condenser fin, and by using parallel light to pass through the standard plate and the fin flow channel of the condenser to be repaired, the abnormal flow channel area caused by fin bending and curling can be accurately identified by comparing the actual light transmission information with the standard light transmission information. This solves the problem in the prior art that relying on manual visual inspection to judge the fin deformation position is inaccurate and it is difficult to detect local flow channel blockage. Attached Figure Description

[0012] Figure 1 This is a schematic diagram showing the vertical relationship between the condenser to be repaired and the standard plate in this invention.

[0013] Figure 2 This is a schematic diagram of the main structure of the condenser to be repaired and the standard plate stacked according to one embodiment of the present invention;

[0014] Figure 3 This is a schematic diagram of the state structure of the parallel light emitting component after the emitted light passes through the condenser to be repaired and the standard plate according to one embodiment of the present invention;

[0015] Figure 4 This is a schematic diagram of the state structure after the parallel light emitting component emits light through the condenser to be repaired and the standard plate according to one embodiment of the present invention. Detailed Implementation

[0016] The embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Other technical solutions obtained by those skilled in the art without inventive effort are all within the protection scope of this application. Furthermore, it should be understood that terms indicating orientation or positional relationship, such as "upper," "lower," "left," "right," "longitudinal," "lateral," "inner," "outer," "vertical," "horizontal," "top," and "bottom," are based solely on the orientation or positional relationship shown in the accompanying drawings and are used only for the convenience of describing this application and simplifying the description. They do not indicate or imply that the device / component must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0017] Reference Figures 1-4 A method for correcting and repairing condenser fin misalignment includes the following steps:

[0018] s1. Fix the condenser 3 to be repaired based on the first positioning reference, and stack and fix the standard plate 4 and the condenser 3 to be repaired together based on the second positioning reference, and the standard flow channel area on the standard plate 4 corresponds to the fin airflow channel of the condenser 3 to be repaired.

[0019] s2. Parallel light is emitted from the parallel light emitting component 2 to the standard plate 4 and the condenser 3 to be repaired, so that the parallel light passes through the fin flow channel of the standard plate 4 and the condenser 3 to be repaired.

[0020] s3. Collect the first illumination information passing through the standard plate 4 and the condenser 3 to be repaired, and compare the first illumination information with the second illumination information of the standard light-transmitting area of ​​the standard plate 4 to determine the abnormal projection area caused by fin bending.

[0021] s4. Correct and repair the abnormal projection area through the repair mechanism.

[0022] Standard plate 4 is an orifice plate prepared according to the model of the condenser, corresponding to the standard flow channel of the condenser fins.

[0023] The second illumination information is the illumination area information of the parallel light emitted by the parallel light emitting component 2 passing through the hole in the standard plate 4.

[0024] In s4, the control repair mechanism moves to the abnormal projection area, and the repair component of the repair mechanism moves along the contour trajectory of the standard light-transmitting area corresponding to the standard plate 4 to push the fin bending part 5 back to the preset flow channel range.

[0025] refer to Figure 3 , Figure 4 The condenser 3 to be repaired is fixed based on the first positioning reference, and the standard plate 4 is stacked and fixed to the condenser 3 to be repaired through the second positioning reference, so that the standard flow channel area on the standard plate 4 corresponds to the airflow channel of the fins of the condenser 3 to be repaired. Since the standard plate 4 is an orifice plate prepared according to the condenser model and corresponding to the normal fin flow channel, the standard light-transmitting area on the standard plate 4 can reflect the normal flow state when the fins are not deformed.

[0026] Parallel light is emitted from the parallel light emitting component 2 towards the standard plate 4 and the condenser 3 to be repaired, allowing the parallel light to pass sequentially through the fin channels of the standard plate 4 and the condenser 3 to be repaired. When the fins are not bent, the parallel light can pass through the area corresponding to the standard light-transmitting region; when the fins are bent due to an impact, the bent part will intrude into the airflow channel, causing a change in the effective light-transmitting area of ​​the corresponding region, as shown in the reference. Figure 4 This creates an abnormal projection area. By collecting the first illumination information after passing through the standard plate 4 and the condenser 3 to be repaired, and comparing the first illumination information with the second illumination information of the standard light-transmitting area corresponding to the standard plate 4, the abnormal projection area caused by fin bending can be determined.

[0027] After determining the abnormal projection area, the repair mechanism is controlled to move to the corresponding position, and the repair component of the repair mechanism moves along the contour trajectory of the standard light-transmitting area corresponding to the standard plate 4, so that the repair component applies a reset force to the fin bending part 5, pushing the fin bending part 5 back to the preset flow channel range, so that the fin flow channel returns to the normal flow state.

[0028] This invention, by setting a standard plate 4 corresponding to the standard flow channel of the condenser fins and using a parallel light emitting component 2 to detect the difference in light transmission between the condenser 3 to be repaired and the standard flow channel, can accurately identify abnormal projection areas caused by fin bending. This solves the problem in the prior art that relies mainly on manual visual judgment of fin deformation positions, making it difficult to accurately determine the blockage areas hidden inside dense fins. Simultaneously, by controlling the repair mechanism to correct and repair the abnormal projection areas according to the contour trajectory of the standard light-transmitting area corresponding to the standard plate 4, the bent fin parts 5 can be restored to the normal flow channel shape. This avoids the problems of low efficiency and high labor intensity caused by manually straightening each fin individually in the traditional method. Furthermore, it can precisely repair fin bending caused by different directions, improving the efficiency and quality of condenser fin repair. This device is mainly used for repairing S-shaped bent fins.

[0029] When the size of the abnormal projection area is detected to be smaller than the standard light-transmitting area but larger than the size of the repair part, the repair part is guided to enter the fin channel from the location of the abnormal projection area. When the size of the abnormal projection area is detected to be smaller than the standard light-transmitting area but larger than the size of the repair part, the repair part is controlled to enter the fin channel from the abnormal projection area so that it can subsequently move along the contour trajectory of the standard light-transmitting area to correct and repair the bent fins.

[0030] In one implementation, a light acquisition component is provided on the side of the standard plate 4 away from the parallel light emitting component 2. The light acquisition component collects the second illumination information after the parallel light passes through the standard plate 4 and the first illumination information after passing through the standard plate 4 and the condenser 3 to be repaired.

[0031] The second illumination information forms a standard light spot image of the standard transparent area, while the first illumination information forms an image of the light spot to be detected. By comparing the first and second illumination information using a computer, the boundary contours of the corresponding illumination areas are extracted, and the pixel area of ​​the corresponding area is calculated based on the boundary contours. The light acquisition component can be an industrial camera, a photoelectric sensor array, or an image acquisition module, etc.

[0032] When the fin flow channel of the condenser 3 to be repaired is not bent, the area of ​​the illuminated region corresponding to the first illumination information is basically the same as the area of ​​the standard light-transmitting region corresponding to the second illumination information; when the fin is bent, the bent part 5 will block part of the light, making the area of ​​the illuminated region corresponding to the first illumination information smaller than the area of ​​the standard light-transmitting region corresponding to the second illumination information.

[0033] By comparing the difference between the area corresponding to the first illumination information and the area corresponding to the second illumination information, the size information of the abnormal projection area is obtained. Based on the relationship between the size of the abnormal projection area and the size of the repair part, it is determined whether the repair part can enter the fin channel from the abnormal projection area.

[0034] In one implementation, the repair mechanism includes an XY-axis moving platform, a Z-axis moving platform mounted on the XY-axis moving platform, and a repair component mounted on the Z-axis moving platform. The XY-axis moving platform controls the repair component to move in two dimensions according to the contour coordinates of the standard light-transmitting area corresponding to the standard plate 4, so that the repair component performs contour-following motion along the boundary of the standard light-transmitting area. The Z-axis moving platform controls the depth of the repair component extending into the finned flow channel according to the thickness of the standard plate 4 and the condenser 3 to be repaired.

[0035] The XY-axis moving platform controls the movement of the repair component in the planar direction, allowing it to gradually adjust the fin bending area according to the movement path corresponding to the normal flow channel shape. This adapts to fin deformation in different directions and improves the accuracy of the repair position. The Z-axis moving platform adjusts the insertion depth of the repair component, ensuring it acts on the corresponding deformation area inside the fin flow channel, avoiding incomplete repair due to insufficient insertion depth.

[0036] The repair component of this device moves along the boundary of the standard light-transmitting area, which can repair the fins in the abnormal projection area from all angles. In addition, the repair component is inserted into the standard plate 4 and the condenser 3 to be repaired through the abnormal projection area. This ensures that if the size does not meet the repair conditions, the repair insertion operation will not be performed, thus avoiding damage to the condenser fins.

[0037] The repair component is a slender rod-shaped structure with an arc-shaped, spherical, or gradually changing guide structure at its end to push the bent area of ​​the fins back to its original position during movement.

[0038] The repair component employs a slender, rod-like structure that extends into the relatively small fin channel and makes smooth contact with the bent fin through its arc-shaped, spherical, or gradient-guided end. As the repair component moves along a preset trajectory, the end structure gradually applies thrust to the bent area of ​​the fin, causing the fin to recover towards the normal flow channel direction after being subjected to force.

[0039] Of course, the repair mechanism can also use methods such as miniature robotic arms to repair the fins.

[0040] After completing the correction and repair, the repaired area is inspected again using parallel light to determine whether the light transmission state after repair meets the standard state. If the abnormal projection area does not reach the preset threshold, step s4 is repeated.

[0041] The repaired area is inspected again using the parallel light emitting component 2, and the illumination information after repair is compared with the standard light-transmitting area corresponding to the standard plate 4 to determine whether the fin flow channel has returned to normal. When the abnormal projection area after repair does not reach the preset threshold, it indicates that the fin bending part 5 has not been fully restored. The control repair mechanism then performs correction repair on the corresponding area again until the test results meet the preset requirements, thus completing the closed-loop control of the detection and repair process.

[0042] Compared to defect identification based on image acquisition and training with large models, this method does not require the establishment of a large defect sample database or complex model training. Instead, it uses physical-optical comparison based on standard flow channel structures. The detection results are less affected by factors such as environment and sample quantity, and have the advantages of accurate detection and low implementation cost.

[0043] The above are merely typical specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any technical solutions, concepts, and designs obtained by those skilled in the art by making equivalent substitutions or changes based on the technical solutions and inventive concepts of this application within the scope of the technology disclosed in this application should be covered within the scope of protection of this application.

Claims

1. A method for correcting and repairing condenser fin misalignment, characterized in that, Includes the following steps: s1. Fix the condenser to be repaired (3) based on the first positioning reference, and stack and fix the standard plate (4) and the condenser to be repaired (3) together based on the second positioning reference, and the standard flow channel area on the standard plate (4) corresponds to the fin airflow channel of the condenser to be repaired (3); s2. Using the parallel light emitting component (2), parallel light is emitted towards the standard plate (4) and the condenser to be repaired (3), so that the parallel light passes through the fin channels of the standard plate (4) and the condenser to be repaired (3); s3. Collect the first illumination information passing through the standard plate (4) and the condenser (3) to be repaired, and compare the first illumination information with the second illumination information of the standard light-transmitting area of ​​the standard plate (4) to determine the abnormal projection area caused by fin bending; s4. Correct and repair the abnormal projection area through the repair mechanism.

2. The method for correcting and repairing condenser fin misalignment according to claim 1, characterized in that, The standard plate (4) is a perforated plate prepared according to the model of the condenser, corresponding to the standard flow channel of the condenser fins.

3. The method for correcting and repairing condenser fin misalignment according to claim 1, characterized in that, The second illumination information is the illumination area information of the parallel light emitted by the parallel light emitting component (2) passing through the hole of the standard plate (4).

4. The method for correcting and repairing condenser fin misalignment according to claim 1, characterized in that, In s4, the control repair mechanism moves to the abnormal projection area, and the repair component of the repair mechanism moves along the contour trajectory of the standard light-transmitting area corresponding to the standard plate (4) to push the fin bending part (5) back to the preset flow channel range.

5. The condenser fin correction and repair method according to claim 4, characterized in that, When the size of the abnormal projection area is detected to be smaller than the size of the standard light-transmitting area but larger than the size of the repair component, the repair component is moved from the position of the abnormal projection area into the fin channel.

6. The method for correcting and repairing condenser fin misalignment according to claim 1, characterized in that, The repair mechanism includes an XY-axis moving platform, a Z-axis moving platform mounted on the XY-axis moving platform, and a repair component mounted on the Z-axis moving platform. The XY-axis moving platform controls the repair component to move in two dimensions according to the contour coordinates of the standard light-transmitting area corresponding to the standard plate (4), so that the repair component moves along the boundary of the standard light-transmitting area. The Z-axis moving platform controls the depth of the repair component extending into the finned flow channel according to the thickness of the standard plate (4) and the condenser (3) to be repaired.

7. A method for correcting and repairing condenser fin misalignment according to any one of claims 4, 5, and 6, characterized in that, The repair component is a slender rod-shaped structure with its end set as an arc surface, spherical surface or gradient guide structure to push the fin bending area back to its original position during movement.

8. The method for correcting and repairing condenser fin misalignment according to claim 1, characterized in that, It also includes step s5: After completing the correction and repair, the repaired area is detected again using parallel light to determine whether the light transmission state after repair has reached the standard state. If the detected abnormal projection area does not reach the preset threshold, step s4 is repeated.

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